Engine sputtering and backfiring

Zen2osho said:

Assuming the service centre has set the tps and found it ok which is possible wuth the triumph diagnostic tool. " the ecm receiving wrong voltage from the tps and changing ignition timing which is causing misfire is ruled out".
The next reason causing it maybe lean mixture!!
Tune modification experts has come into the scene and help now!!

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Blackthou said:

At least they didn't rack up a kin great bill to tell you there was nothing wrong with it.

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grampi said:

I would've gladly done that if I knew where to find one in the Dayton OH area...also Cincy, Columbus, and Indy are not that far away either...

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grampi said:

The service tech just called me and said they found no problems with the bike. I now have to assume the tune is creating the issue.

Two questions for you guys; is the ECM and ECU the same thing? If so, why the two different acronyms? Secondly, does the ECU (or ECM) record engine anomalies like a car's computer does? I know a car's computer records engine problems and stores them because I've seen my mechanic read those issues with their diagnostics machine. If this info is recorded and stored in the ECU, wouldn't it register every time the engine misfires, and could we then read that to determine what is causing the problem?

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TURBO200R4 said:

WHERE TO start (they found no problem with the bike) sounds to me like they never drove the bike i would explain to the dealer how to duplicate the problem. once they see the problem they can either fix the problem or they can not. i would not let them get away with saying they could not find the problem.
u may have tied there hands by telling them not to change the ecu and they just didn't want to mess with it.
i would not assume that the problem is with the tune. but u could load another tune just to check it out. if u had tunecu
u need some one to duplicate the problem and know how to check it out. if u can not find some one like that u need to get the tunecu cable and down load the free tunecu program and then the guys on here can help u out.

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EasTexRIII said:

This is from power commander website & is a great source for dyno tuners - They list as p/c tuners, but they dyno all - put in your area, it will bring up a map. choose some near you then scroll down the list of shop. Click on the shop & most have a web page so you can see what they specialize in:

Power Commander Motorcycle Fuel Injection Tuning Module

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